
For occasional listening we have a Sonab OD-11 mono omnidirectional speaker in our living room. a Bluetooth amp, but they're almost all stereo - which means I'd have to sum the two channels with resistors. I didn't want that, I wanted a real mono Bluetooth amplifier. Most of them are really bad, I researched them all. Tried this one and it fits perfectly right out of the box. Bluetooth from all devices recognized it immediately and we get a reliable connection over the 2000 square meters. ft. At 5 watts you need sensitive speakers, I use a full range Visiton B200 with no crossover and it is very loud but starts to distort heavily at about 3/4 of maximum. It's easy to get 85dB without distortion. Haven't tried the battery connector yet, but this board exceeded my expectations. I've tried many class D and T amplifier boards and the amplifier on this one is pretty good and the bluetooth connection is excellent. It's also SMALL. 5 Stars. Oh, you can buy connectors online. I left a comment above, 2mm 2 pin connector MINI MICRO JST PH MALE. You can remove the connectors and solder, which is probably better, but this board is really small and I didn't even want to try it, I don't know how.

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